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The age of the directly imaged planet host star k Andromedae determined from interferometric observations

Jones, Jeremy; White, R. J; Quinn, S; Ireland, Michael; Boyajian, T; Schaefer, G; Baines, Ellyn


κ Andromedae, an early-type star that hosts a directly imaged low-mass companion, is expected to be oblate due to its rapid rotational velocity (v sin i = ~162 km s⁻¹). We observed the star with the CHARA Array's optical beam combiner, PAVO, measuring its size at multiple orientations and determining its oblateness. The interferometric measurements, combined with photometry and this v sin i value are used to constrain an oblate star model that yields the fundamental properties of the star and...[Show more]

CollectionsANU Research Publications
Date published: 2016-04-22
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/2041-8205/822/1/L3
Access Rights: Open Access


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